At my NT scan, the sonographer found a cyst on my ovary

it measured 7cm one way, and 10cm the other way. He brought in a second opinion and neither said it was anything to be concerned about but to keep monitoring it with my OB... Naturally, I am a bit concerned. I'm sure everything will be fine, but still.
Has anyone else encountered this currently or in previous pregnancies?
and for the record, baby was perfect and fiesty! We even got a 'convinced' gender prediction!
Re: Cyst found on ovary!?
Married: October 2014
TTC #1 since September 2015
My Dr is not worried. They will go away one day.
Here is a tip, if your Dr is not worried you don't need to either.
I'm sure I'll be just fine